I believe the coupon will say on it '2 for 1 or 50% off single diner' if you have the option to use it for 50% off. I'm sure someone else will chime in with a more substantial answer. You can also look into the LVA coupon booklet which does have a lot of coupons with this option on them. www.lasvegasadvisor.com Their coupon booklet comes with their annual membership.
yes, that would be a great idea to compile that list!! as always, it never hurts to ask. if you can ask the cashier before standing in a long line, well then just ask. if they say no, then eat elsewhere.I think some places will actually honor them as 50% even though it only says "2 for 1" -- so it would be great if we could compile a list of those that will accept a 2for1 as 50% without it explicitly stating it!
I haven't had any problems using a ACG 2 for 1 buffet coupon with just me, i usually say my girlfriend got sick and won't be going to any buffets anytime soon and they take it no problem...